Reply to Ecler EQ knobs

Anyone replace them? I'm looking for a either rubber covered or knurled metal knobs, around the same size or tiny bit smaller. I'd also like a center indicator dot or line.

I feel like the stock knobs are a little flimsy, they kind of have a cheap feel to them, as they are hollow. Maybe I should just fill them with epoxy? haha!

tldr
finding knobs is hard